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Running opengl samples on TDA2x

Kapil Mehta
Genius 3710 points

Hi Yogesh,

I referred visionSDK_LinuxUserGuide.pdf to use Linux on TDA2x and to work on Opengl ES on SGX core.
I have installed omap5-sgx-ddk-linux library for running sample examples and I am able to run the samples that are available in installed package.

But, When I run PowerVR SDK sample I am getting the following error,
PVR:(Warning): LoadWSModule: Window system module libpvrws_KMS.so did not validate native display [98, /generic_ws.c]
PVR:(Warning): LoadWSModule: Window system module libpvrws_WAYLAND.so did not validate native display [98, /generic_ws.c]
PVR:(Error): Couldn't load WS module libpvrws_OMAPDRI2.so [44, /generic_ws.c]
Failed to get an EGLDisplay

So could you please help me resolving this error?

I want to know difference between PowerVR SDK and omap5-sgx-ddk-linux .

Also it would be good  If you share the source code for omap5-sgx-ddk-linux  which I have installed for  TDA2x by referring to VisionSDK_LinuxUserGuide .

  • 0
    TI__Expert 7765 points
    Kapil,

    Im not a graphics expert, will follow it up for you.
  • 0 in reply to Yogesh Marathe
    TI__Expert 7015 points

    Kapil,

    Did you use eglGetDisplay as follows?

    EGLDisplay disp = eglGetDisplay(EGL_DEFAULT_DISPLAY);

    That will not work for TI EGL/GL stack as it does not export any EGL_DEFAULT_DISPLAY.

    Refer to this repo git://git.ti.com/glsdk/kmscube.git for understanding how to write an EGL/GL application based on KMS

    <I want to know difference between PowerVR SDK and omap5-sgx-ddk-linux .>

    PowerVR SDK  is an SDK from Imaginagination technologies which includes GL/EGL example applications and various tools for analysing and profiling the Graphics HW/SW.

    If I am not mistaken, you meant omap5-sgx-ddk-um-linux (note the extra "um").

    omap5-sgx-ddk-um-linux is the package that provides libEGL.so, libGLESv2.so and the user space libraries required by them

    omap5-sgx-ddk-linux is the source package for the SGX kernel driver.

    <Also it would be good  If you share the source code for omap5-sgx-ddk-linux  which I have installed for  TDA2x by referring to VisionSDK_LinuxUserGuide .>

    omap5-sgx-ddk-linux is a source package, so if you installed it, you already have teh source code

    omap5-sgx-ddk-um-linux is a binary package, and we cannot share the source code for that because of proprietary reasons.

  • 0 in reply to Subhajit Paul
    Genius 3710 points
    Subhajit ,

    Thanks for your quick response.

    I have few queries regarding running opengl ES code on TI,
    1. I could run the code by using this EGLDisplay disp = eglGetDisplay(EGL_DEFAULT_DISPLAY); on TI 8148 , in which I have used ti-ezsdk_dm814x-evm_5_05_02_00 for SD boot.
    So Is this SD boot from ti-ezsdk_dm814x-evm_5_05_02_00, can work with TI TDA2x?


    <omap5-sgx-ddk-linux is a source package, so if you installed it, you already have teh source code>
    Ans: I dont find any source code after installing omap5-sgx-ddk-linux package , only I found is executable files, in this path /targetfs/opt/img-pvr-sdk ,
    So It would be great If you could send us source code for at-least existing sample codes.
  • 0 in reply to Kapil Mehta
    TI__Expert 7765 points
    Kapil,

    No TI 8148 and TDA2x has different cores and kernel versions all together. TI 8148 had cortex A8 while TDA2x has A15 ti-ezsdk_dm814x-evm_5_05_02_00 will not work on TDA2x. For SD boot, you can use vision SDK with Linux or GLSDK.
  • 0 in reply to Kapil Mehta
    TI__Expert 7015 points

    Can you tell me the instructions as to how you downloaded and installed the package? Also, it would be great if you could send me the output of

    ls -lR targetfs/

    Regards,

    Subhajit

  • 0 in reply to Subhajit Paul
    Genius 3710 points

       targetfsFileLists.txt

    Hi Subhajit,

    I have followed steps mentioned in VisionSDK_LinuxUserGuide document .

    Also I have attached text file which contains output of  ls -lR targetfs/ command.

  • 0 in reply to Yogesh Marathe
    Genius 3710 points
    Hi Yogesh,

    Could you please send me links to download GLSDK to boot SD on TDA2x .
  • 0 in reply to Kapil Mehta
    TI__Expert 7765 points
    Before we go in that direction have you looked at section "4.2 Preparing SD card & Boot" in VisionSDK_LinuxUserGuide? You can also prepare bootable SD card with what you have.
  • 0 in reply to Yogesh Marathe
    Genius 3710 points

    Hi Yogesh,

    I have already done SD card bootable as mentioned in section 4.2 .

    Since you replied earlier

    As  ti-ezsdk_dm814x-evm_5_05_02_00 will not work on TDA2x. For SD boot, you can use vision SDK with Linux or GLSDK.

    For this, What I need is link to download GLSDK to try this on TDA2x.

  • 0 in reply to Kapil Mehta
    TI__Expert 7015 points

    Kapil,

    You can find GLSDK download from this landing page

    http://processors.wiki.ti.com/index.php/Category:Processor_SDK_Linux_Automotive

    Regards,

    Subhajit

  • 0 in reply to Subhajit Paul
    Genius 3710 points

    Hi Subhajit,

    In earlier mail chains I have attached output of ls -lR targetfs/ .

    and  have followed steps mentioned in VisionSDK_LinuxUserGuide document for linux installation on A15.

    and  I dont find any source code after installing omap5-sgx-ddk-linux package , only I found is executable files, in this path /targetfs/opt/img-pvr-sdk ,

    So It would be great If you could send us source code for at-least existing sample codes.

    7752.targetfsFileLists.txt

  • 0 in reply to Kapil Mehta
    TI__Expert 7015 points

    Kapil,

    Can you please let me know how you are installing the package omap5-sgx-ddk-linux on your target?

    Regards,

    Subhajit

  • 0 in reply to Subhajit Paul
    Genius 3710 points
    HI Subhajit ,

    As I already mentioned ion previous mail that I have followed steps in VisionSDK_LinuxUserGuide document .
    Below are the list of commands,

    $> cd $INSTALL_DIR/ti_components/os_tools/linux/sgx
    $> git clone git://git.ti.com/graphics/omap5-sgx-ddk-linux.git
    $> cd omap5-sgx-ddk-linux/
    $> git checkout -b sgx_dev 0f3561a47cf7a1b968fb64446a0be10abc9a15d5
  • 0 in reply to Kapil Mehta
    TI__Expert 5130 points
    Kapil,

    VisionSDK_Linux is meant to be used primarily by ADAS customers who are primarily working from IPU/BIOS and want to use Linux/SGX as a black box

    If you want to use more Linux capabilities from A15 and program on SGX, I would suggest that you install GLSDK. This will provide all the required host tools and packages for you to build Graphics applications.

    Please refer to the following:
    processors.wiki.ti.com/.../Category:Processor_SDK_Linux_Automotive

    You need to use 7.04.00.03 release.

    Regards,
    Anand